Which kind of job that the bullocks do is NOT mentioned in the passage？
A Pulling vehicles
B Plowing fields
C Pumping water out if wells
D Carrying food baskets.
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The Internet has brought _____ big changes in the way we work.
A. about B. out C. back D. up
Some people like drinking coffee, for it has _____ effects.
A. promoting B. stimulating C. enhancing D. encouraging
_____ the price is, they are prepared to pay.
A. However B. whichever C. whatever D. wherever
29下面是某地区标准厂房工程造价指数表，按照指数分类，表中的指数相对于2000年7月的指数属于（）。
A. 定基数指数和数量指标指数
B. 环比指数和质量指标指数
C. 定基数指数和质量指标指数
D. 环比指数和数量指标指数
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